Brahmā said: The syllable ‘m’ is the sower, ‘a’ is the seed and ‘u’ is the womb. The three symbolise the lord, Pradhāna and Puruṣa. Thus the sower, the seed and the womb, together with nāda, constitute lord Śiva. The sower divided itself out of his own free will. Out of the liṅga of the lord the sower created the seed ‘a’ which he discharged into the womb ‘u’ where it increased all round.